[Feature Request] Yates correction for chi-squared test

**Description**

Pearson's chi-squared test allows the determination if two distributions differ from each other.
If an expected value is below 5, a correction for small numbers should be made.

- Yates' corrections
- William's corrections

**References**

https://www.ling.upenn.edu/~clight/chisquared.htm
https://en.wikipedia.org/wiki/Chi-squared_test#Yates's_correction_for_continuity